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<html lang="zh-cn">
<head>
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   <meta charset="utf-8">
   <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

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   <title>Hello, world!</title>
 </head>
 <body>

   <div class="container">
     <h3>省市区三级联动菜单</h3>
     <div class="row">
       <div class="col-sm">
         <div class="input-group mb-3">
          <div class="input-group-prepend">
           <label class="input-group-text" for="provice">省</label>
          </div>
          <select class="custom-select" id="provice">
             <option selected>Choose...</option>
             <option value="1">One</option>
             <option value="2">Two</option>
             <option value="3">Three</option>
          </select>
          </div>
    </div>
    <div class="col-sm">
      <div class="input-group mb-3">
       <div class="input-group-prepend">
        <label class="input-group-text" for="city">市</label>
       </div>
       <select class="custom-select" id="city">
          <option selected>Choose...</option>
          <option value="1">One</option>
          <option value="2">Two</option>
          <option value="3">Three</option>
       </select>
       </div>
    </div>
    <div class="col-sm">
      <div class="input-group mb-3">
       <div class="input-group-prepend">
        <label class="input-group-text" for="area">区/县</label>
       </div>
       <select class="custom-select" id="area">
          <option selected>Choose...</option>
          <option value="1">One</option>
          <option value="2">Two</option>
          <option value="3">Three</option>
       </select>
       </div>
    </div>
    </div>
    <div class="row">
      <div class="col-sm">
      你所选择的地址是：
    </div>
    <div class="col-sm" id="address">
          
    </div>
    <div class="col-sm">
      &nbsp;&nbsp;&nbsp;&nbsp;
    </div>
</div>

  </div>

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   <script type="text/javascript" src="/js/main.js"></script>
 </body>
</html>
